IMPREC Project Contract No. POL- NOR/196364/7/2013 IMProving wastewater treatment with better phosphorus RECovery University of Warmia and Mazury in Olsztyn, Poland Norwegian University of Life Sciences in Aas, Norway the project budget is zł This project is funded from Norway Grants in the Polish-Norwegian Research Programme operated by the National Centre for Research and Development

Objectives (in general) Increase the efficiency and economic feasibility of wastewater treatment with coagulation, especially focusing on phosphates removal from Polish municipal wastewaters Increase the quality and the reusability of phosphorus from wastewater sludge in view of the forthcoming phosphate crisis

WP1: Optimization of electrocoagulation. Comprehensive documentation of the applicability of electrocoagulation on Polish and Norwegian wastewater. A prototype will be developed, demonstrated and validated. WP2: Development of a flock sensor.. Development of a flock sensor based on correlations of image analysis and advanced control systems of the flock growth, fractal geometry, and other physical parameters. The concept will be demonstrated and validated, while feasibility for further development and commercialization will be evaluated. WP3: Dosing control for wastewater treatment. The project will demonstrate the functionality of a novel dosing control system enabling savings and higher and stable treatment efficiencies. Although several WWTPs have been interested in the concept, a reference WWTP demonstrating the functionality under the Polish conditions is highly sought after. WP4: Dosing control for sludge treatment. A multi-parameter based polymer dosing concept for sludge dewatering and thickening will be developed and validated. The financial and technological feasibility will be presented. WP5: Optimization of coagulation to improve reusability of sludge. A solution to the much debated reduced availability of phosphates to plants will be presented without jeopardizing the excellent treatment efficiencies of the wastewater coagulation process.

WP1 Optimization of electrocoagulation: lab research and pilot plant tests IMPRECWP3 Dosing control for wastewater treatment: full scale tests WP5 Optimization of coagulation to improve reusability of sludge: lab research and pot-plant testing WP2 Development of a flock sensor: lab research on image analysis and Master-Sizer application WP4 Dosing control for sludge treatment: lab research and full scale tests METHODS: